I have a 240 with a black painted backround and was wondering what substrate I should use....I have used pool filter sand before but don't wanna go that route again...the only gravel I have local access too is Petco gravel....although I will travel for some nice gravel or some other substrate....anyone have any ideas.....was going to do tiles but they look akward in a glass tank as the silicone prevents the tiles from sitting seamless in the tank. I want gravel like shown in this tank
But have no clue where to find some of this color. If anyone has ideas or suggestions or ANYTHING let me know lol....